公开(公告)号：US09491669B1

公开(公告)日：2016-11-08

申请号：US14830541

申请日：2015-08-19

Applicant: QUALCOMM Incorporated

Inventor： Ibrahim Hajj-Ahmad ,  Vikram Singh ,  Gary Chia-Jui Chang ,  Jyotirmoy Das ,  Tien-Hsin Lee ,  Sanjeev Mittal

IPC: H04N7/14 ,  H04W36/00 ,  H04L12/825

Abstract: A system and method for rate-adaptation of a video telephony (VT) session is disclosed. In one example, there is provided a method that includes receiving a first information set indicative of a start of a handover of a device from a first Radio Access Technology (RAT) to a second RAT. The method further includes receiving a second information set indicative of an end of the handover. The method further includes adjusting a rate-adaptation protocol for the VT session based at least in part on the first and second information sets.

公开(公告)号：US20170055184A1

公开(公告)日：2017-02-23

申请号：US14830541

申请日：2015-08-19

Applicant: QUALCOMM Incorporated

Inventor： Ibrahim Hajj-Ahmad ,  Vikram Singh ,  Gary Chia-Jui Chang ,  Jyotirmoy Das ,  Tien-Hsin Lee ,  Sanjeev Mittal

IPC: H04W36/00 ,  H04L12/825 ,  H04N7/14

CPC classification number: H04W36/0055 ,  H04L1/0014 ,  H04L47/2416 ,  H04L47/25 ,  H04L47/26 ,  H04N7/147 ,  H04N2007/145 ,  H04W36/00 ,  H04W36/0011 ,  H04W36/14 ,  H04W88/06

Abstract: A system and method for rate-adaptation of a video telephony (VT) session is disclosed. In one example, there is provided a method that includes receiving a first information set indicative of a start of a handover of a device from a first Radio Access Technology (RAT) to a second RAT. The method further includes receiving a second information set indicative of an end of the handover. The method further includes adjusting a rate-adaptation protocol for the VT session based at least in part on the first and second information sets.

Abstract translation: 公开了一种用于视频电话（VT）会话的速率适配的系统和方法。 在一个示例中，提供了一种方法，包括：接收指示设备从第一无线电接入技术（RAT）到第二RAT的切换开始的第一信息集。 该方法还包括接收指示切换结束的第二信息集。 该方法还包括至少部分地基于第一和第二信息集来调整用于VT会话的速率适配协议。

公开(公告)号：US20170026650A1

公开(公告)日：2017-01-26

申请号：US14805318

申请日：2015-07-21

Applicant: QUALCOMM Incorporated

Inventor： Sanjeev Mittal ,  Vikram Singh ,  Tien-Hsin Lee

IPC: H04N19/154 ,  H04N19/112 ,  H04N19/114 ,  H04N19/136 ,  H04N7/14 ,  H04N19/172 ,  H04N19/177 ,  H04N19/44 ,  H04N19/503 ,  H04N19/593 ,  H04N19/107 ,  H04N19/159

CPC classification number: H04N19/154 ,  H04L65/1083 ,  H04L65/1096 ,  H04L65/608 ,  H04N7/141 ,  H04N7/147 ,  H04N19/107 ,  H04N19/112 ,  H04N19/114 ,  H04N19/136 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177 ,  H04N19/44 ,  H04N19/503 ,  H04N19/593

Abstract: A system and method for performing video telephony (VT) is disclosed. In one example, there is provided an apparatus having a transceiver configured to receive VT data and information indicating a switch from a first display to a second display from a network. The apparatus also includes a decoder operatively coupled to the transceiver and configured to decode the VT data, a memory comprising a coded picture buffer (CPB) configured to store the decoded VT data, and a processor operatively coupled to the transceiver, the decoder, and the memory. The processor is configured to, in response to receiving the information indicating a switch from a first display to a second display, instruct the transceiver to transmit a request for an I-frame to the network.

Abstract translation: 公开了一种用于执行视频电话（VT）的系统和方法。 在一个示例中，提供了一种具有收发器的装置，其被配置为从网络接收VT数据和指示从第一显示器切换到第二显示器的信息。 所述设备还包括操作性地耦合到所述收发器并且被配置为对所述VT数据进行解码的解码器，所述存储器包括经配置以存储所述解码的VT数据的编码图像缓冲器（CPB），以及可操作地耦合到所述收发器，所述解码器和 记忆。 处理器被配置为响应于接收到指示从第一显示器切换到第二显示器的信息，指示收发器向网络发送对I帧的请求。

公开(公告)号：US10085029B2

公开(公告)日：2018-09-25

申请号：US14805318

申请日：2015-07-21

Applicant: QUALCOMM Incorporated

Inventor： Sanjeev Mittal ,  Vikram Singh ,  Tien-Hsin Lee

IPC: H04N21/2343 ,  H04N19/154 ,  H04N19/107 ,  H04N19/112 ,  H04N19/114 ,  H04N19/136 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177 ,  H04N19/44 ,  H04N19/503 ,  H04N19/593 ,  H04N7/14 ,  H04L29/06

CPC classification number: H04N19/154 ,  H04L65/1083 ,  H04L65/1096 ,  H04L65/608 ,  H04N7/141 ,  H04N7/147 ,  H04N19/107 ,  H04N19/112 ,  H04N19/114 ,  H04N19/136 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177 ,  H04N19/44 ,  H04N19/503 ,  H04N19/593

Abstract: A system and method for performing video telephony (VT) is disclosed. In one example, there is provided an apparatus having a transceiver configured to receive VT data and information indicating a switch from a first display to a second display from a network. The apparatus also includes a decoder operatively coupled to the transceiver and configured to decode the VT data, a memory comprising a coded picture buffer (CPB) configured to store the decoded VT data, and a processor operatively coupled to the transceiver, the decoder, and the memory. The processor is configured to, in response to receiving the information indicating a switch from a first display to a second display, instruct the transceiver to transmit a request for an I-frame to the network.

公开(公告)号：US09674737B2

公开(公告)日：2017-06-06

申请号：US14830541

申请日：2015-08-19

Applicant: QUALCOMM Incorporated

Inventor： Ibrahim Hajj-Ahmad ,  Vikram Singh ,  Gary Chia-Jui Chang ,  Jyotirmoy Das ,  Tien-Hsin Lee ,  Sanjeev Mittal

IPC: H04N7/14 ,  H04W36/00 ,  H04L12/825 ,  H04L1/00 ,  H04W88/06

CPC classification number: H04W36/0055 ,  H04L1/0014 ,  H04L47/2416 ,  H04L47/25 ,  H04L47/26 ,  H04N7/147 ,  H04N2007/145 ,  H04W36/00 ,  H04W36/0011 ,  H04W36/14 ,  H04W88/06

Abstract: A system and method for rate-adaptation of a video telephony (VT) session is disclosed. In one example, there is provided a method that includes receiving a first information set indicative of a start of a handover of a device from a first Radio Access Technology (RAT) to a second RAT. The method further includes receiving a second information set indicative of an end of the handover. The method further includes adjusting a rate-adaptation protocol for the VT session based at least in part on the first and second information sets.

公开(公告)号：US20160127732A1

公开(公告)日：2016-05-05

申请号：US14527626

申请日：2014-10-29

Applicant: QUALCOMM Incorporated

Inventor： Sanjeev Mittal

IPC: H04N19/146 ,  H04L29/06 ,  H04N19/513 ,  H04N19/105 ,  H04N19/172

CPC classification number: H04N19/146 ,  H04L65/1016 ,  H04L65/4092 ,  H04L65/602 ,  H04L65/608 ,  H04L65/80 ,  H04N7/147 ,  H04N7/148 ,  H04N19/105 ,  H04N19/172 ,  H04N19/513 ,  H04N21/6373 ,  H04N21/6437

Abstract: An apparatus configured for video telephony includes a receiving device configured to receive video data at a first bitrate; send a request to change the first bitrate to a second bitrate; receive a first intra coded picture in response to the request to change the first bitrate to the second bitrate; in response to detecting the second bitrate, flush the first intra coded picture from a picture buffer; and in response to flushing the first intra coded picture from the picture buffer, send a request for a second intra coded picture.

Abstract translation: 配置用于视频电话的装置包括被配置为以第一比特率接收视频数据的接收装置; 发送请求将第一个比特率更改为第二个比特率; 响应于将所述第一比特率改变为所述第二比特率的请求，接收第一帧内编码图像; 响应于检测到第二比特率，从图像缓冲器中刷新第一帧内编码图像; 并且响应于从图像缓冲器中冲洗第一帧内编码图像，发送对第二帧内编码图像的请求。

公开(公告)号：US09313508B1

公开(公告)日：2016-04-12

申请号：US14527626

申请日：2014-10-29

Applicant: QUALCOMM Incorporated

Inventor： Sanjeev Mittal

IPC: H04N7/14 ,  H04N19/146 ,  H04N19/105 ,  H04N19/172 ,  H04N19/513 ,  H04L29/06

CPC classification number: H04N19/146 ,  H04L65/1016 ,  H04L65/4092 ,  H04L65/602 ,  H04L65/608 ,  H04L65/80 ,  H04N7/147 ,  H04N7/148 ,  H04N19/105 ,  H04N19/172 ,  H04N19/513 ,  H04N21/6373 ,  H04N21/6437

Abstract: An apparatus configured for video telephony includes a receiving device configured to receive video data at a first bitrate; send a request to change the first bitrate to a second bitrate; receive a first intra coded picture in response to the request to change the first bitrate to the second bitrate; in response to detecting the second bitrate, flush the first intra coded picture from a picture buffer; and in response to flushing the first intra coded picture from the picture buffer, send a request for a second intra coded picture.

Abstract translation: 配置用于视频电话的装置包括被配置为以第一比特率接收视频数据的接收装置; 发送请求将第一个比特率更改为第二个比特率; 响应于将所述第一比特率改变为所述第二比特率的请求，接收第一帧内编码图像; 响应于检测到第二比特率，从图像缓冲器中刷新第一帧内编码图像; 并且响应于从图像缓冲器中冲洗第一帧内编码图像，发送对第二帧内编码图像的请求。